ospf nssa area default route?!

[jiangyixiao]

I have one nssa area and other normal area, is there simple solution to import default route in all area include nssa area? I think may be use redistribute default route on NSSA area border router(also be asbr)? but I ty many time ,no result. Why NSSA can import other routing protocol route exclude default route.

[amit-singh]

Hi,

When you have a NSAA are the NSSA router doesnot generate the defualt route it it doesno have it in its routing table.

NSSA ASBR can generate a default only when it has a default route in its routing table.

NSSA ABR can generate a default route with or without a default route in its own routing table.

The following command is used to generate an NSSA default route:

router ospf 1

area 1 nssa default-information originate

HTH,Please rate if it does.

-amit singh

[jiangyixiao]

thank you very much. if i do this as you point, but how normal area import default route . Must i use default-information originate on nssa abr. why nssa abr can't transltate this type 7 default route as type 5 default route into normal area?

[amit-singh]

Hi,

The ABR for the NSSA generates the default route, but not by default. To force the ABR to generate the default route, use the area

HTH,

-amit singh